Changeset 3f1d4d5 in mainline for uspace/lib/virtio/virtio.c

Timestamp:

2018-06-23T19:25:56Z (6 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

9319b7d

Parents:

5609d3c

Message:

Insist on the specified features

File:

• uspace/lib/virtio/virtio.c (modified) (1 diff)

uspace/lib/virtio/virtio.c

@@ -201 +201 @@
 
         ddf_msg(LVL_NOTE, "offered features %x", device_features);
+
+        if (features != (features & device_features))
+                return ENOTSUP;
         features &= device_features;
-
-        if (!features)
-                return ENOTSUP;
 
         /* 4. Write the accepted feature flags */